Natural Selection and Adaptations

Front

Which characteristic would help giraffes outlive others in a population?

Back

Having the longest necks

Front

Chameleons are reptiles that have the ability to hide from predators and prey by blending in with their environment. They can change the pattern and/or color of their skin. This ability is known as —

Back

camouflage

Front

Most organisms have coloration that helps them blend into their surroundings. Male peacocks have colorful, feathered tails. These conspicuous tails are used for —

Back

attracting mates

Front

Beak shape in Galapagos finches, as observed by Charles Darwin, is an example of —

Back

adaptation

Front

Scientists plan to use selective breeding to produce a new type of wheat for farmers who live in northern areas with short summer seasons. Which of these traits would be MOST useful for these farmers? large seed size, long stem length, fast growth rate, shallow root systems

Back

fast growth rate

Front

What function does blubber perform for a penguin?

Back

Protect the penguin from freezing water temperature

Front

Differences in traits are called _________ and explain why siblings don't look exactly alike.

Back

variations

Front

A physical or behavioral trait an organism is born with that helps it survive is -

Back

An adaptation

Front

True or False. All mutations are harmful.

Back

False

Front

The survival of a species depends on its ability to adapt to changes in the environment. Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment?

Back

Mutations are a source of variation in the species